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The aqueous solution of which of the fol...

The aqueous solution of which of the following salt will have the lowest pH ?

A

`NaClO`

B

`NaClO_(4)`

C

`NaClO_(3)`

D

`NaClO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
All these salts on hydrolysis give the corresponding acids, i.e., `HClO, HClO_(2), HClO_(3) and HClO_(4)`
`NaClO_(4) + H_(2)O rarr NaOH + HClO_(4)`
Since `HClO_(4)` is the strongest acid, therefore, its aqueous solution will have lowest pH. Thus, option (b) is correct.
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